EP 1001308 A1 20000517 - Lens-fitted photo film unit, and method of making photo-print
Title (en)
Lens-fitted photo film unit, and method of making photo-print
Title (de)
Mit einer Linse versehene photographische Filmeinheit und Verfahren zur Herstellung eines Abdrucks
Title (fr)
Unité de film muni d'une lentille et méthode de fabrication d'un image
Publication
Application
Priority
- JP 30564698 A 19981027
- JP 8041999 A 19990324
Abstract (en)
A lens-fitted photo film unit can take indoor- and night-photographs at adequate tone- and color-reproductions, by satisfying the condition: <MATH> wherein T, A and S represents the shutter speed, the aperture size, and the ISO film speed. The film speed is determined to be not less than ISO640, and more preferably not less than ISO1000. The guide number (ISO100.m) of a flash device of the film unit is set to be in a range from 0.1 to 8, more preferably from 1 to 6, and most preferably from 3 to 5, and satisfies the condition: 8.0 ≤ log2 (G<2>) + log2 (1/T)≤ 12.0, in combination with the shutter speed T. <IMAGE>
IPC 1-7
IPC 8 full level
G03B 19/04 (2006.01)
CPC (source: EP US)
G03B 19/04 (2013.01 - EP US); G03B 2219/045 (2013.01 - EP US)
Citation (search report)
- [A] US 5608477 A 19970304 - SHIMIZU MITSURU [JP], et al
- [A] US 5223871 A 19930629 - IWAGAKI MASARU [JP], et al
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1001308 A1 20000517; EP 1001308 B1 20060426; DE 69931008 D1 20060601; DE 69931008 T2 20061116; US 6222995 B1 20010424
DOCDB simple family (application)
EP 99308503 A 19991027; DE 69931008 T 19991027; US 42596299 A 19991025